SemaDeclCXX.cpp: Dissolve a ligature "fi" in comment.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186523 91177308-0d34-0410-b5e6-96231b3b80d8
Improve idiomatic-parentheses by checking method family instead of relying on the selector name.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@186524 91177308-0d34-0410-b5e6-96231b3b80d8